Slicing and tiling in video coding

A video decoding layer and block technology, applied in the field of video decoding, can solve the problem of video size becoming a problem

Active Publication Date: 2021-04-23
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The size of the video can also be an issue when storing the video in a storage device as memory resources can be limited

Method used

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  • Slicing and tiling in video coding
  • Slicing and tiling in video coding
  • Slicing and tiling in video coding

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Embodiment Construction

[0039] It should be understood at the outset that although the following provides illustrative implementations of one or more embodiments, the disclosed systems and / or methods may be implemented using any number of techniques, whether currently known or existing Technology. The disclosure should not be limited to the illustrative implementations, drawings, and techniques illustrated below, including the exemplary designs and implementations illustrated and described herein, but rather be limited by the scope of the appended claims and their equivalents Modified in full.

[0040] Many video compression techniques can be used to reduce the size of video files while minimizing data loss. For example, video compression techniques may include performing spatial (eg, intra) prediction and / or temporal (eg, inter) prediction to reduce or remove data redundancy in a video sequence. For block-based video coding, a video slice (eg, a video image or a part of a video image) may be divid...

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Abstract

A video coding mechanism is disclosed. The mechanism includes receiving at a decoder, a bitstream including a video coding layer (VCL) network abstraction layer (NAL) unit containing a slice of image data divided into a plurality of tiles. A number of the tiles in the VCL NAL unit are determined. A number of entry point offsets for the tiles is also determined as one less than the number of the tiles in the VCL NAL unit. Each entry point offset indicates a starting location of a corresponding tile in the VCL NAL unit. The number of entry point offsets is not explicitly signaled in the bitstream. The entry point offsets for the tiles are obtained based on the number of entry point offsets. The tiles are decoded at the entry point offsets to generate a reconstructed image.

Description

[0001] Related Applications Cross Application [0002] This patent application claims the benefit of U.S. Provisional Patent Application No. 62 / 731,696, filed September 14, 2018, by Ye-Kui Wang et al., entitled "Slicing and Chunking in Video Coding," by Incorporated herein by reference. technical field [0003] The present invention relates generally to video coding, and in particular, to partitioning images into slices, blocks, and coding tree units (CTUs) to support enhanced compression in video coding. Background technique [0004] Large amounts of video data need to be described even in the case of short videos, which can cause difficulties when the data is to be transmitted or otherwise transmitted in a communication network with limited bandwidth capacity. Therefore, video data is usually compressed before being sent over modern telecommunications networks. Since memory resources may be limited, the size of the video may also be an issue when storing the video in a s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/70H04N19/13H04N19/36H04N19/30
CPCH04N19/174H04N19/426H04N19/436H04N19/70H04N19/44H04N19/96H04N19/119H04N19/184H04N19/176H04N19/1883H04N19/46
Inventor 王业奎弗努·亨德里陈建乐
Owner HUAWEI TECH CO LTD
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